Kev ceev faj rau kev siv kub muffle cub to measure coal ash

1. Some routine matters of high-temperature muffle furnace in the laboratory. Such as indoor temperature, power supply, placement of various accessories, and ashware placed in a constant temperature environment.

2. Always maintain good ventilation during the ashing process, so that sulfur oxides are discharged in time as soon as they are generated. Therefore, the high-temperature muffle furnace is required to be equipped with a chimney and a ventilation hole on the furnace door, or open the furnace door to make a small gap. The air in the furnace can circulate naturally.